Part-66 Mock Exam: Free Timed Practice Tests by Module

A Part-66 mock exam is only useful if it behaves like the real thing: the same number of questions for your category, the same time limit, three options per question and the 75% pass mark. Get any of those wrong and the score tells you very little. This article explains what a good mock has to copy, how the paper size changes between categories and between EASA and UK CAA rules, how to sit a mock so the result means something, and how to read your score before you spend money and an attempt on the real module.

Part-66 Prep is an independent study aid. We are not EASA, the UK CAA or a Part-147 organisation, and our papers are original exam-style papers, not past papers. Neither authority publishes past papers; the Part-66 past papers guide explains why.

What a Part-66 mock exam has to copy

The exam standard is set out in Appendix II to Part-66. For the EU it was replaced by Regulation (EU) 2023/989, which applies from 12 June 2024. The UK kept its own version in the retained UK Part-66. The basics are the same in both:

Feature	Real exam	Why it matters in a mock
Options per question	Three, one correct	Four-option practice trains you for a format you won't see
Time	About 75 seconds per question	Pace is a skill; untimed practice hides it
Pass mark	75%	You need a margin above it, not a near miss
Negative marking	None	Never leave a question blank
Distractors	Equally plausible to someone who doesn't know the subject; calculation distractors come from common mistakes	Recognising answers is not enough
Essays	EASA: Module 7 only, two essays. UK CAA: Modules 7 (two), 9 (one) and 10 (one). 20 minutes each	A multiple-choice mock doesn't cover them; practise essays separately

The Part-66 exam format guide covers each rule in detail, including partial exams and the marks you need on every paper size.

Key fact: The 75% pass mark applies to the multiple-choice paper and to essays separately. Passing one part and failing the other means you retake only the failed part.

Paper sizes change with category and authority

This is where most free mock tests fall down. There is no single "Module 7 mock". The same module has a different paper size for each licence category, and since June 2024 several EASA sizes no longer match the UK ones. These figures come from Appendix II and match our papers:

Module	Category	EASA paper	UK CAA paper	Marks needed (EASA / UK)
Module 7 Maintenance practices	B1.1	80 questions, 100 min, 2 essays	80 questions, 100 min, 2 essays	60 / 60
Module 7 Maintenance practices	B2	60 questions, 75 min, 2 essays	60 questions, 75 min, 2 essays	45 / 45
Module 7 Maintenance practices	A	76 questions, 95 min, 2 essays	72 questions, 90 min, 2 essays	57 / 54
Module 9 Human factors	B1 and B2	28 questions, 35 min	20 questions, 25 min, plus 1 essay	21 / 15
Module 10 Aviation legislation	B1 and B2	44 questions, 55 min	40 questions, 50 min, plus 1 essay	33 / 30
Module 6 Materials and hardware	B1	80 questions, 100 min	72 questions, 90 min	60 / 54
Module 8 Basic aerodynamics	All	24 questions, 30 min	20 questions, 25 min	18 / 15
Module 13 Aircraft systems	B2	188 questions, 235 min	180 questions, 225 min	141 / 135

If a mock gives one size for everyone, it is wrong for most candidates. If it still shows an essay in EASA Module 9 or 10, it predates the 2024 rules. The EASA vs UK CAA guide lists every paper where the two systems differ, and the Part-66 modules guide gives the full list by category.

Under EASA rules, an exam longer than 90 minutes may be split into partial exams. Your exam centre decides how it runs a long paper such as Module 11A or 13, so ask them. For a mock, sit the whole paper in one go at least once; it is the best test of stamina.

Free mock exams you can sit today

Every module of every category has a free full-length paper on this site, with no account needed. Choose EASA or UK CAA rules on the start screen and the paper is cut to the right size.

What	Size	Use it for	Example
Category diagnostic	20 questions across your category's modules	Finding where you stand on day one	B1.1 diagnostic
Module quick practice	20 questions, instant explanations	Learning a module, a short session at a time	Module 10 quick practice for B1.1
Paper 1	The full real size and time	Your first proper mock for that module	Module 7 paper 1 for B1.1
Printable sheet	50 questions with an answer key	Revising away from a screen	Module 9 printable questions

A few more starting points by category: the B2 diagnostic, Module 10 paper 1 for B2, the category A hub and Module 1 paper 1 for B1.1.

Every paper uses three options, about 75 seconds a question and the 75% pass mark, with questions spread over the sub-modules the way the AMC to Appendix II weights them. Calculation questions get new numbers from our generator, so you practise the method rather than a remembered answer. After each answer you get an explanation with the sub-module reference.

Try it now: If you haven't sat anything yet, start with the free 20-question diagnostic for your category, such as the B1.1 diagnostic. It takes about 20 minutes and shows which modules need the most work before you spend time on a full mock.

How to sit a mock so the score means something

A mock sat with your phone in one hand and your notes open in the other produces a nice number and no information. Set it up like the exam:

1. Pick the right paper. Your category and your authority (EASA or UK CAA). If you are not sure which system applies to you, the authority that will issue your licence decides it.
2. Clear the time. A B1.1 Module 7 paper takes 100 minutes for the multiple choice alone. Don't start it with 40 minutes before a shift.
3. Remove everything you can't take in. No phone, no notes, no second screen. Use paper and a pencil for rough working.
4. Leave the calculator out. CAA exam venues did not allow calculators when we checked in October 2026, and EU exam centres set their own rules. Practise without one unless your centre has told you otherwise.
5. Answer every question. There is no negative marking. If you are stuck, eliminate one option and choose between the other two.
6. Don't pause. If you stop the clock to look something up, the result is a learning session, not a mock.

Use the clock as a checkpoint

At 75 seconds a question, an 80-question paper gives you 100 minutes. A simple check: by the halfway mark on the clock you should be at least halfway through the questions. If you are behind, stop rereading the questions you have already answered and keep moving. Flag hard ones and come back.

Reading your mock exam score

The number at the end is only half the result. The other half is where you lost marks.

Score on a new, unseen paper	What it usually means	What to do next
Below 60%	Gaps across several sub-modules	Go back to the notes; use quick practice with explanations, not more full papers
60% to 74%	Some sub-modules solid, others weak	Sort wrong answers by sub-module and revise the weakest two or three
75% to 84%	A pass on the day is possible but not safe	Keep sitting new papers; target the sub-modules that still cost marks
85% or more on three different papers	A margin over the pass mark that covers nerves and new wording	Book the exam

The bands are a guide we use, not an official standard. The last row is the readiness rule built into the app and the site: each module hub counts how many of three papers you have scored 85% or more on.

Sort mistakes by sub-module

After each mock, list your wrong answers with the sub-module next to each. Three wrong answers in the same sub-module are a clearer signal than a total score. For Module 7, for example, you might find your losses are all in weight and balance or in documentation, which tells you exactly which note to reread before the next paper.

Watch for memorised scores

A second attempt at the same paper a day later measures memory, not knowledge. Use a new paper each time you want a real reading. If your scores on repeated papers are far higher than on fresh ones, you have learned the questions, not the subject.

Mock exam, question bank or past paper?

People search for all three when they mean "something to practise on". They are different things:

• A mock exam is a full paper at the real size and time, sat once under exam conditions. It tells you whether you are ready.
• A question bank is a large pool of questions for learning and drilling. It tells you what you don't know yet.
• A past paper doesn't exist for Part-66. Exam questions must be kept secure under 66.B.200 of Regulation (EU) No 1321/2014, and the UK rule says the same. Files sold as "recalled" or "real" papers are unreliable, and a candidate proven to have cheated is barred from all exams for 12 months.

You need the first two. Use the bank to learn, then mocks to check.

The mixed-module mock

Each category also has a 60-question mixed paper (75 minutes) that draws on all the category's modules, weighted by their real paper sizes. It isn't a real exam format, since every Part-66 module is examined on its own, but it is a good test of retention: it shows whether a module you passed six months ago is still there before you need it again for a later module or a type course. It is part of Pro; the B1.1 mixed paper is one example.

What a mock can't do

Be honest with yourself about the limits.

• Essays aren't marked online. The start screen tells you how many essays the real paper has. Practise them by writing to a 20-minute clock and checking your answer against key points; the Part-66 essay questions guide explains the method, and the app has an essay coach.
• No mock is the real exam. Our questions are written to the syllabus and the Appendix II rules, but the real wording will differ. That is why the 85% margin matters.
• No mock guarantees a pass. Nobody can promise that, and we don't.

A failed real attempt costs more than an exam fee. It starts a wait of 90 days before you can resit (30 days after tailored Part-147 retraining) and uses one of a limited number of attempts. The Part-66 resit rules explain the limits under each system, and the UK CAA engineer licensing pages list current exam fees (£60 per CAA module exam as of October 2026).

When the free paper isn't enough: Pro

One free paper per module is enough to find out where you stand. It isn't enough to meet the 85%-on-three-papers rule, because after one attempt you have seen paper 1.

Pro adds papers 2 to 10 for every module, the 60-question mixed-module paper, sub-module drills (for example riveting drills for B1.1 Module 7) and all 149 study notes, for all seven categories under both EASA and UK CAA sizes. The prices are £6.99 per week, £11.99 per month or £22.99 for three months, billed in GBP by Stripe, and you can cancel in one click. If you are preparing for one module over the next few weeks, the monthly plan usually costs less than paying weekly. Full details are on the pricing page.

It is a practice tool. It doesn't replace approved training, count as experience or guarantee a result. What it does is give you enough unseen, correctly sized papers to know whether you are ready before you book.

A sensible order, whichever you choose:

1. Sit the free diagnostic for your category.
2. Learn the module with notes and quick practice.
3. Sit the free paper 1 as a proper timed mock.
4. Keep sitting new papers until you reach 85% on three of them.
5. Then book.